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Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2025

Fair Value Disclosures [Abstract]

Schedule of Balances of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables present the balances of assets and liabilities measured at fair value on a recurring basis for the periods presented:

						December 31, 2025
(In thousands)						Total						Level 1						Level 2						Level 3
Available-for-sale securities
U.S. Treasury						$	7,035					$	7,035					$	—					$	—
U.S. government agencies						47,471						—						47,471						—
Municipal						162,166						—						62,563						99,603
Corporate notes						77,295						—						77,295						—
Mortgage-backed						5,942,296						—						5,942,296						—
Equity securities with readily determinable fair value						63,770						55,704						8,066						—
Mortgage loans held-for-sale						340,745						—						286,931						53,814
Loans held-for-investment						151,590						—						95,390						56,200
MSRs						195,023						—						—						195,023
Nonqualified deferred compensation assets						18,112						—						18,112						—
Derivative assets						179,667						—						176,251						3,416
Total						$	7,185,170					$	62,739					$	6,714,375					$	408,056
Derivative liabilities						$	123,774					$	—					$	123,774					$	—
						December 31, 2024
(In thousands)						Total						Level 1						Level 2						Level 3
Available-for-sale securities
U.S. Treasury						$	37,907					$	37,907					$	—					$	—
U.S. government agencies						44,945						—						44,945						—
Municipal						184,593						—						62,986						121,607
Corporate notes						81,162						—						81,162						—
Mortgage-backed						3,792,875						—						3,792,875						—
Trading account securities						4,072						—						4,072						—
Equity securities with readily determinable fair value						215,412						207,346						8,066						—
Mortgage loans held-for-sale						331,261						—						270,862						60,399
Loans held-for-investment						158,795						—						123,899						34,896
MSRs						203,788						—						—						203,788
Nonqualified deferred compensation assets						16,653						—						16,653						—
Derivative assets						200,027						—						198,077						1,950
Total						$	5,271,490					$	245,253					$	4,603,597					$	422,640
Derivative liabilities						$	241,750					$	—					$	241,750					$	—

Schedule of Changes In Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis

The changes in Level 3 assets measured at fair value on a recurring basis during the years ended December 31, 2025 and 2024 are summarized as follows:

(In thousands)			Municipal						Mortgage loans held-for-sale												Loans held-for-investment						MSRs						Derivative assets
Balance at January 1, 2025			$	121,607					$	60,399											$	34,896					$	203,788					$	1,950
Total net gains (losses) included in:
Net income (1)			—						1,829												555						(8,765)						1,466
Other comprehensive income or loss			(12,178)						—												—						—						—
Purchases			42,387						—												—						—						—
Settlements			(52,213)						(105,867)												(35,591)						—						—
Net transfers into Level 3			—						97,453												56,340						—						—
Balance at December 31, 2025			$	99,603					$	53,814											$	56,200					$	195,023					$	3,416

(In thousands)			Municipal						Mortgage loans held-for-sale												Loans held-for-investment						MSRs						Derivative assets
Balance at January 1, 2024			$	86,237					$	26,835											$	60,670					$	192,456					$	4,510
Total net gains (losses) included in:
Net income (1)			—						370												(43)						11,332						(2,560)
Other comprehensive income or loss			(11,212)						—												—						—						—
Purchases			84,839						—												—						—						—
Settlements			(38,257)						(48,555)												(43,525)						—						—
Net transfers into Level 3			—						81,749												17,794						—						—
Balance at December 31, 2024			$	121,607					$	60,399											$	34,896					$	203,788					$	1,950

(1)Changes in the balance of mortgage loans held-for-sale, MSRs and derivative assets related to fair value adjustments are recorded as components of mortgage banking revenue. Changes in the balance of loans held-for-investment related to fair value adjustments are recorded as other non-interest income.

Schedule of Assets Measured at Fair Value on a Nonrecurring Basis

For assets measured at fair value on a non-recurring basis that were still held in the balance sheet at the end of the period, the following table provides the carrying value of the related individual assets or portfolios at December 31, 2025.

						December 31, 2025																								Year Ended December 31, 2025 Fair Value Losses Recognized, net
(In thousands)						Total						Level 1						Level 2						Level 3
Individually assessed loans - foreclosure probable and collateral-dependent						$	137,209					$	—					$	—					$	137,209					$	61,222
Other real estate owned (1)						20,839						—						—						20,839						2,668
Total						$	158,048					$	—					$	—					$	158,048					$	63,890

(1)Net fair value losses recognized on other real estate owned include valuation adjustments and charge-offs during the respective period.

Schedule of Valuation Techniques and Significant Unobservable Inputs Used to Measure Both Recurring and Non Recurring

The valuation techniques and significant unobservable inputs used to measure both recurring and non-recurring Level 3 fair value measurements at December 31, 2025 were as follows:

(Dollars in thousands)			Fair Value						Valuation Methodology						Significant Unobservable Input						Input / Range of Inputs						Weighted Average of Inputs						Impact to valuation from an increased  or higher input value
Measured at fair value on a recurring basis:
Municipal securities			$	99,603					Bond pricing						Equivalent rating						BBB-AA+						N/A						Increase
Mortgage loans held-for-sale			53,814						Discounted cash flows						Discount rate						5.02		%				5.02		%				Decrease
															Credit discount						0% - 35%						0.92		%				Decrease
Loans held-for-investment			56,200						Discounted cash flows						Discount rate						5.02% - 6.00%						5.12		%				Decrease
															Credit discount						0% - 22%						1.51		%				Decrease
															Constant prepayment rate (CPR) - current loans						9.92		%				9.92		%				Decrease
															Average life - delinquent loans (in years)						1.4 years - 12.0 years						5.9 years						Decrease
MSRs			195,023						Discounted cash flows						Discount rate						9% - 15%						9.83		%				Decrease
															Constant prepayment rate (CPR)						6% - 86%						9.92		%				Decrease
															Cost of servicing						$70 - $200						$	76					Decrease
															Cost of servicing - delinquent						$200 - $1,000						$	382					Decrease
Derivatives			3,416						Discounted cash flows						Pull-through rate						10% - 100%						83.02		%				Increase
Measured at fair value on a non-recurring basis:
Individually assessed loans - foreclosure probable and collateral-dependent			137,209						Appraisal value						Appraisal adjustment - cost of sale						10		%				10.00		%				Decrease
Other real estate owned			20,839						Appraisal value						Appraisal adjustment - cost of sale						10		%				10.00		%				Decrease

Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments

The table below presents the carrying amounts and estimated fair values of the Company’s financial instruments as of the dates shown:

						December 31, 2025												December 31, 2024
(In thousands)						Carrying Value						Fair Value						Carrying Value						Fair Value
Financial Assets:
Cash and cash equivalents						$	467,938					$	467,938					$	458,536					$	458,536
Interest-bearing deposits with banks						3,180,553						3,180,553						4,409,753						4,409,753
Available-for-sale securities						6,236,263						6,236,263						4,141,482						4,141,482
Held-to-maturity securities						3,343,905						2,785,147						3,613,263						2,910,550
Trading account securities						—						—						4,072						4,072
Equity securities with readily determinable fair value						63,770						63,770						215,412						215,412
FHLB and FRB stock, at cost						291,881						291,881						281,407						281,407
Brokerage customer receivables						—						—						18,102						18,102
Mortgage loans held-for-sale, at fair value						340,745						340,745						331,261						331,261
Loans held-for-investment, at fair value						151,590						151,590						158,795						158,795
Loans held-for-investment, at amortized cost						52,953,511						52,383,501						47,896,242						47,070,249
Nonqualified deferred compensation assets						18,112						18,112						16,653						16,653
Derivative assets						179,667						179,667						200,027						200,027
Accrued interest receivable and other						552,197						552,197						563,625						563,625
Total financial assets						$	67,780,132					$	66,651,364					$	62,308,630					$	60,779,924
Financial Liabilities:
Non-maturity deposits						$	47,839,241					$	47,839,241					$	43,092,318					$	43,092,318
Deposits with stated maturities						9,877,950						9,890,485						9,420,031						9,423,976
FHLB advances						3,451,309						3,472,538						3,151,309						3,153,524
Other borrowings						477,966						478,072						534,803						534,406
Subordinated notes						298,636						296,487						298,283						286,683
Junior subordinated debentures						253,566						253,591						253,566						253,588
Derivative liabilities						123,774						123,774						241,750						241,750
Accrued interest payable						62,884						62,884						48,364						48,364
Total financial liabilities						$	62,385,326					$	62,417,072					$	57,040,424					$	57,034,609

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Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).

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Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

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Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

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